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From: Jeff Garzik <jeff@garzik.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Ying Chu <jasonchu@marvell.com>, linux-scsi@vger.kernel.org
Subject: Re: [PATCH 1/4] mvsas: bugfix for NULL pointer execption
Date: Fri, 08 May 2009 18:05:55 -0400	[thread overview]
Message-ID: <4A04ACC3.4080004@garzik.org> (raw)
In-Reply-To: <1241797393.3327.52.camel@mulgrave.int.hansenpartnership.com>

James Bottomley wrote:
> On Fri, 2009-05-08 at 14:15 +0800, Ying Chu wrote:
>> >From 347191384292c6e9a9a572c657049bc11615fb82 Mon Sep 17 00:00:00 2001
>> From: Andy <ayan@marvell.com>
>> Date: Mon, 4 May 2009 23:29:26 +0800
>> Subject: [PATCH 1/4] mvsas: bug fix, null pointer may be used
>>
>> Null pointer exception when mvi_dev is null.
> 
> A little more explanation might be helpful.  It looks to me that you get
> this issue when you have in-flight I/O to a device we've been notified
> has gone (because you NULL out lldd_dev in the removal notification
> routine).
> 
> In which case, don't we have other races where this can happen, like in
> mvs_I_T_nexus_reset()?

Agreed...



  reply	other threads:[~2009-05-08 22:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08  6:15 [PATCH 1/4] mvsas: bugfix for NULL pointer execption Ying Chu
2009-05-08 15:43 ` James Bottomley
2009-05-08 22:05   ` Jeff Garzik [this message]
2009-05-09  7:26     ` Andy Yan

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